Article
Multidisciplinary Sciences
James L. France, Mark F. Lunt, Marcos Andrade, Isabel Moreno, Anita L. Ganesan, Thomas Lachlan-Cope, Rebecca E. Fisher, David Lowry, Robert J. Parker, Euan G. Nisbet, Anna E. Jones
Summary: This study measures the methane concentration in the Llanos de Moxos wetlands in northern Bolivia and finds that the daily methane flux in this area is very high, potentially contributing up to 8% of annual methane emissions in the Amazon Basin.
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA
(2022)
Article
Green & Sustainable Science & Technology
Provvidenza Rita D'Urso, Claudia Arcidiacono
Summary: Milking frequency significantly influences the concentrations of ammonia, methane, and carbon dioxide, resulting in changes in gas levels in the barn environment.
Article
Environmental Sciences
Amin Reza Omranian, Shahab Dabirinejad, Babak Khorsandi, Meeghat Habibian
Summary: The primary greenhouse gas contributor in Karaj, Iran is power plants, accounting for 47% of total emissions. Residential and commercial units as well as mobile sources also play a significant role in emitting GHGs. GHG emissions per capita and per GDP in Karaj are higher than global averages. To reduce emissions, mitigation strategies such as developing renewable energy sources, switching to low-emission transportation, and raising public awareness should be implemented.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2023)
Article
Agriculture, Dairy & Animal Science
D. W. Olijhoek, A. L. F. Hellwing, S. J. Noel, P. Lund, M. Larsen, M. R. Weisbjerg, C. F. Borsting
Summary: The study found that increasing the concentrate level in dairy cattle diets had a stronger effect on reducing methane emissions and changing the rumen bacterial community structure in Holstein cows. In contrast, Jersey cows showed a stronger response in terms of rumination time and chews to the increased concentrate level in the diet.
JOURNAL OF DAIRY SCIENCE
(2022)
Article
Biodiversity Conservation
Yuk-Faat Wu, Jeanette Whitaker, Sylvia Toet, Amy Bradley, Christian A. Davies, Niall P. McNamara
Summary: The study found that diurnal N2O flux variability is a common phenomenon in agricultural and forest soils, with around 80% of data sets exhibiting diurnal patterns, peaking during the day in 60% of cases. Contrary to expectations, strong positive correlations between soil temperature and N2O flux were found in only a third of the data sets, with other factors such as land management and soil properties potentially influencing the occurrence of diurnal patterns.
GLOBAL CHANGE BIOLOGY
(2021)
Article
Environmental Sciences
Kevin R. Gurney, Siir Kilkis, Karen C. Seto, Shuaib Lwasa, Daniel Moran, Keywan Riahi, Meredith Keller, Peter Rayner, Muhammed Luqman
Summary: Projections of greenhouse gas emissions are crucial for understanding and anticipating future climate change. The influence of urban areas on global emissions is significant and increasing, especially with the rapid urbanization. Urban mitigation measures are vital for achieving climate neutrality.
GLOBAL ENVIRONMENTAL CHANGE-HUMAN AND POLICY DIMENSIONS
(2022)
Article
Astronomy & Astrophysics
Yangyang Xu, Lei Lin, Chenrui Diao, Zhili Wang, Susan Bates, Julie Arblaster
Summary: The response of precipitation extremes (PEs) to global warming is found to be nonlinear. There are concerns regarding the accuracy of approximating the PE response to a single forcing using simulations that exclude one specific forcing. Previous studies suggesting a larger sensitivity of PE to aerosol forcing compared to greenhouse gases are questioned. This study reevaluates the PE sensitivity to greenhouse gases and aerosols using CESM1 ensemble simulations and confirms that PE sensitivity to aerosols is stronger than that due to greenhouse gases within similar warming regimes, but the difference is smaller than previously estimated. The study also suggests that the additivity assumption is largely valid for isolating the PE response due to aerosol forcing from the simulations when the warming regime is small.
EARTH AND SPACE SCIENCE
(2022)
Review
Environmental Sciences
Cosmas Ngozichukwu Anyanwu, Onyekwere Ojike, Nnaemeka Vincent Emodi, Ekwe Bassy Ekwe, Chukwumerije Okereke, Endurance Ogheneruona Diemuodeke, Anieze Ethelbert Elochukwu, Uchenna Alexander Nnamani
Summary: Greenhouse gases (GHG) from the agriculture, forestry, and other land use (AFOLU) sector are major contributors to anthropogenic climate change in Africa and globally. There is a lack of systematic reviews on decarbonization pathways for the AFOLU sector in Africa, despite the difficulties in emission estimation and the complex links between AFOLU activities and poverty reduction.
ENVIRONMENTAL MONITORING AND ASSESSMENT
(2023)
Article
Biodiversity Conservation
Jinquan Li, Junmin Pei, Changming Fang, Bo Li, Ming Nie
Summary: Research shows that wetland CO2 and CH4 emissions have opposite seasonal temperature dependencies, with CO2 emissions decreasing with increasing monthly mean temperature and CH4 emissions showing the opposite pattern. Neglecting this seasonal temperature dependence may lead to an overestimation of wetland greenhouse gas emissions.
GLOBAL CHANGE BIOLOGY
(2022)
Article
Meteorology & Atmospheric Sciences
Chao He, Tianjun Zhou
Summary: According to the study, global warming is projected to strengthen the North Atlantic subtropical anticyclone (NASA) while weakening the North Pacific subtropical anticyclone (NPSA). The distinct responses of NASA and NPSA to greenhouse gas and sea surface temperature changes suggest potential zonal asymmetry in subtropical climate change.
JOURNAL OF CLIMATE
(2022)
Article
Meteorology & Atmospheric Sciences
Nadir Jeevanjee, Jacob T. Seeley, David Paynter, Stephan Fueglistaler
Summary: Clear-sky CO2 forcing varies significantly globally, primarily influenced by surface temperature, stratospheric temperature, and column relative humidity. The difference in forcing between regions is mainly due to the surface-stratosphere temperature contrast. In tropical and midlatitude regions, the presence of water vapor modulates the forcing by affecting atmospheric emissions.
JOURNAL OF CLIMATE
(2021)
Article
Energy & Fuels
Raphael Oliveira de Melo, Nairam Felix de Barros, Rafael da Silva Teixeira, Aymbire Angeletti da Fonseca, Samuel Vasconcelos Valadares, Ricardo Previdente Martins, Iago Nery Melo
Summary: This study evaluated the impact of removal or maintenance of eucalyptus harvest residues on greenhouse gas fluxes and carbon fixation in the soil-plant system. The results showed that maintaining harvest residues increased soil CO2, CH4, and N2O fluxes in the first months after harvest, but had no significant effect on soil organic C content and carbon fixation in plant biomass.
BIOENERGY RESEARCH
(2023)
Article
Green & Sustainable Science & Technology
Abdallah M. A. Dawood, Emmanuel O. Darko, Eric T. Glover
Summary: The Ghana Nuclear Power Agenda aims to guide and facilitate the installation of Ghana's first nuclear power plant to address the growing energy needs and greenhouse gas emissions. Nuclear power is seen as an environmentally friendly, efficient, and sustainable energy source that can significantly reduce CO2 emissions in the country.
CLEAN TECHNOLOGIES AND ENVIRONMENTAL POLICY
(2021)
Article
Green & Sustainable Science & Technology
Jennifer B. Dunn, Santiago D. Salas, Qining Chen, David T. Allen
Summary: Methane emission reductions are essential for addressing climate change due to their high short-term reductions in radiative forcing. Efforts are already being made to reduce methane emissions. This study compares the benefits of cutting methane emissions from the oil and gas sector with reducing an equivalent amount of carbon dioxide using carbon capture and storage (CCS). The results show that prioritizing quickly deployable methane emission reduction alternatives is an efficient approach to achieve near-term climate change relief.
CLEAN TECHNOLOGIES AND ENVIRONMENTAL POLICY
(2023)
Article
Biodiversity Conservation
Wenchang Zhou, Shanshan Xiang, Yuhu Shi, Xiuhuan Xu, Huicui Lu, Wenhui Ou, Jiawei Yang
Summary: This study measured CH4 emissions from invasive aquatic plants in a subtropical lake in China and found that these plants contribute to the overall CH4 emissions, thus impacting global warming.
Article
Environmental Sciences
Ali Motalebi Damuchali, Huiqing Guo
ATMOSPHERIC ENVIRONMENT
(2020)
Article
Environmental Sciences
Dandan Huang, Huiqing Guo
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2020)
Article
Environmental Sciences
Dandan Huang, Huiqing Guo
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2020)
Article
Construction & Building Technology
Md Shamim Ahamed, Huiqing Guo, Karen Tanino
JOURNAL OF BUILDING ENGINEERING
(2020)
Article
Environmental Sciences
Ali Motalebi Damuchali, Huiqing Guo
ATMOSPHERIC ENVIRONMENT
(2020)
Article
Agriculture, Multidisciplinary
Md Sazan Rahman, Huiqing Guo, Jingjing Han
Summary: A novel model, DehumReq, is developed to predict the dehumidification requirement of greenhouses with high accuracy. A strategy for dehumidification load is recommended based on the model, suggesting the use of 90% assurance rate for humidity control. This model and strategy provide greenhouse growers with the ability to predict dehumidification needs and select suitable dehumidifiers for effective and economic temperature-relative humidity control.
COMPUTERS AND ELECTRONICS IN AGRICULTURE
(2021)
Article
Energy & Fuels
Shuyao Dong, Md Shamim Ahamed, Chengwei Ma, Huiqing Guo
Summary: This study improved a thermal model for Chinese-style solar greenhouses and validated it using field data, showing good accuracy in simulating indoor temperature of the greenhouse.
Review
Thermodynamics
Md Shamim Ahamed, Huiqing Guo, Karen Tanino
Summary: Solar radiation data are crucial for designing and studying various engineering systems, and cloud cover-based solar radiation models are commonly used to estimate hourly global solar radiation. Among these models, the Kasten-Czeplak model and the Lam-Li model are relatively simple and accurate for estimating hourly solar radiation. A study evaluating the Lam-Li model in four different Canadian cities found that a newly modified model performed significantly better than the original model.
INTERNATIONAL JOURNAL OF GREEN ENERGY
(2022)
Article
Energy & Fuels
Weiwei Xu, Huiqing Guo, Chengwei Ma
Summary: The addition of an active solar water wall and an underground water storage tank to the north wall of Chinese solar greenhouses can increase nighttime temperature. The water wall shows good performance in terms of heat collection and release capability, as well as thermal performance in adverse weather. The retrofitting of water walls can make warm-season crop production feasible throughout winter by eliminating supplemental heating.
Article
Environmental Sciences
Ali Mott, Huiqing Guo
Summary: Odour dispersion modelling is an effective approach in evaluating odour impact, but research on this for oil refineries is limited. This study used the AERMOD model to investigate the odour impact of a refinery in Western Canada and proposed new odour impact criteria and setback distances for the refinery.
ATMOSPHERIC ENVIRONMENT
(2022)
Article
Agricultural Engineering
Yingjie Yang, Myra C. Martel, Brooke N. Thompson, Huiqing Guo, Bernardo Z. Predicala, Lifeng Zhang, Shelley P. Kirychuk
Summary: This study developed laboratory-scale electrospray modules to generate EWNS for microbial inactivation, with promising results in the reduction of Escherichia coli under relevant conditions. The technology shows potential as a microbial decontamination method for animal confinement buildings, but further in-barn tests are needed for full commercial implementation.
BIOSYSTEMS ENGINEERING
(2021)
Article
Agriculture, Dairy & Animal Science
Jordan Si, Shelley Kirychuk, Yingjie Yang, Myra Martel, Brooke Thompson, Lifeng Zhang, Bernardo Predicala, Huiqing Guo
Summary: Methods to control microbial contamination in confined livestock facilities are important for the health of animals and workers, as well as for food safety. This study investigated the efficacy of engineered water nanostructures (EWNS) generated using an electrospray system in inactivating bacteria found in poultry facilities. The results suggest that EWNS could be a potential chemical-free alternative to conventional disinfection methods.
Article
Agricultural Engineering
Yingjie Yang, Shelley P. Kirychuk, Yuchen Si, Myra C. Martel, Huiqing Guo, Bernardo Z. Predicala, Lifeng Zhang
Summary: Animal buildings are a significant contributor to particulate matter pollution, but a laboratory-scale electrospray system has been developed to generate highly-charged nano sized water droplets called engineered water nanostructures (EWNS), which have shown effectiveness in reducing livestock particulate matter. The study found that negative voltages generated higher numbers of EWNS, and the water consumption of the developed electrospray was relatively low compared to other methods, achieving reduction efficiencies comparable to wet electrostatic scrubbers.
BIOSYSTEMS ENGINEERING
(2022)
Article
Agricultural Engineering
Yuchen Si, Yingjie Yang, Myra Martel, Brooke Thompson, Bernardo Predicala, Huiqing Guo, Lifeng Zhang, Shelley Kirychuk
Summary: This study demonstrated the effectiveness of engineered water nanostructures (EWNS) in inactivating Escherichia coli (E. coli) on stainless steel surfaces. The efficacy of EWNS was found to be directly related to liquid pH, conductivity, and applied voltage, while inversely related to liquid flow rate and distance between the needle tip and counter electrode. These results provide insights for the potential application of EWNS in real barn environments.
TRANSACTIONS OF THE ASABE
(2021)
Article
Engineering, Multidisciplinary
Yuchen Si, Yingjie Yang, Myra Martel, Lifeng Zhang, Shelley Kirychuk, Bernardo Predicala, Huiqing Guo
Summary: The study showed significant influences of applied voltage and distance on electric current, but not of liquid feed rate within the investigated range. Experimental data indicated that increasing the distance of the capillary needle, liquid feed rate, pH, and conductivity resulted in increased electrosprayed area.
RESULTS IN ENGINEERING
(2021)
Article
Environmental Sciences
Muhammad Waqas, Majid Nazeer, Man Sing Wong, Wu Shaolin, Li Hon, Joon Heo
Summary: The socio-economic restriction measures implemented in the United States have significantly reduced nitrogen dioxide (NO2) emissions. The study highlights the impact of factors such as human mobility, population density, income, climate, and stationary sources on the reduction of NO2 at different stations. The research emphasizes the scientific impacts of the NO2 reduction and income inequality revealed by the pandemic on air quality and health disparities.
ATMOSPHERIC ENVIRONMENT
(2024)
Article
Environmental Sciences
Guorui Zhi, Jinhong Du, Aizhong Chen, Wenjing Jin, Na Ying, Zhihui Huang, Peng Xu, Di Wang, Jinghua Ma, Yuzhe Zhang, Jiabao Qu, Hao Zhang, Li Yang, Zhanyun Ma, Yanjun Ren, Hongyan Dang, Jianglong Cui, Pengchuan Lin, Zhuoshi He, Jinmin Zhao, Shuo Qi, Weiqi Zhang, Wenjuan Zhao, Yingxin Li, Qian Liu, Chen Zhao, Yi Tang, Peng Wei, Jingxu Wang, Zhen Song, Yao Kong, Xiangzhe Zhu, Yi Shen, Tianning Zhang, Yangxi Chu, Xinmin Zhang, Jiafeng Fu, Qingxian Gao, Jingnan Hu, Zhigang Xue
Summary: An comprehensive emission inventory for China in 2019, which includes both air pollutants and greenhouse gases, was developed in this study. The inventory utilizes existing frameworks and data to provide comparable emissions data and demonstrates the relationship between emissions and economic development.
ATMOSPHERIC ENVIRONMENT
(2024)
Article
Environmental Sciences
I-Ting Ku, Yong Zhou, Arsineh Hecobian, Katherine Benedict, Brent Buck, Emily Lachenmayer, Bryan Terry, Morgan Frazier, Jie Zhang, Da Pan, Lena Low, Amy Sullivan, Jeffrey L. Collett Jr
Summary: Unconventional oil and natural gas development (UOGD) in the United States has expanded rapidly in recent decades, raising concerns about its impact on air quality. This study conducted extensive air monitoring during the development of several large well pads in Broomfield, Colorado, providing a unique opportunity to examine changes in local air toxics and VOC concentrations during well drilling and completions and production. The study identified significant increases in VOC concentrations during drilling operations, highlighting the importance of emissions from synthetic drilling mud. The findings suggest opportunities to mitigate emissions during UOGD operations.
ATMOSPHERIC ENVIRONMENT
(2024)
Article
Environmental Sciences
Puji Lestari, Akbar R. Tasrifani, Wiranda I. Suri, Martin J. Wooster, Mark J. Grosvenor, Yusuke Fujii, Vissia Ardiyani, Elisa Carboni, Gareth Thomas
Summary: This study developed field emission factors for various pollutants in peatland fires and estimated the total emissions. Gas samples were collected using an analyzer, while particulate samples were collected using air samplers. The study found significant emissions of CO2, CO, PM2.5, carbon aerosols, water-soluble ions, and elements from the fires in Central Kalimantan, Indonesia in 2019.
ATMOSPHERIC ENVIRONMENT
(2024)
Article
Environmental Sciences
Ligang Li, Yuyu Chen, Lu Fan, Dong Sun, Hu He, Yongshou Dai, Yong Wan, Fangfang Chen
Summary: A high-precision retrieval method based on a deep convolutional neural network and satellite remote sensing data is proposed to obtain accurate methane vertical profiles.
ATMOSPHERIC ENVIRONMENT
(2024)
Article
Environmental Sciences
Hyung Joo Lee, Toshihiro Kuwayama, Michael Fitzgibbon
Summary: This study investigated the changes in nitrogen dioxide (NO2) air pollution levels and their disparities in California, U.S. during the pandemic of coronavirus disease 2019 (COVID-19). The results showed a decrease in NO2 concentrations, especially in urban and high-traffic areas. However, socially vulnerable populations still experienced higher levels of NO2 exposure. The study suggests that reducing NO2 disparities, particularly racial inequity, can be achieved through continued regulatory actions targeting traffic-related NOx emissions.
ATMOSPHERIC ENVIRONMENT
(2024)
Article
Environmental Sciences
Maria Chiara Pietrogrande, Beatrice Biffi, Cristina Colombi, Eleonora Cuccia, Umberto Dal Santo, Luisa Romanato
Summary: This study investigates the chemical composition and oxidative potential of PM10 particles in the Po Valley, Italy, and demonstrates the impact of high levels of atmosphere ammonia. The rural area had significantly higher ammonia concentrations compared to the urban site, resulting in higher levels of secondary inorganic aerosol. Although the SIA components did not contribute significantly to the PM10 oxidative reactivity, they were correlated with the oxidative potential measurements. This suggests that the contribution of SIA to PM oxidative toxicity cannot be ignored.
ATMOSPHERIC ENVIRONMENT
(2024)
Article
Environmental Sciences
Natalie Allen, Jan Gacnik, Sarrah M. Dunham-Cheatham, Mae Sexauer Gustin
Summary: Accurate measurement of atmospheric reactive mercury is challenging due to its reactivity and low concentrations. The University of Nevada, Reno Reactive Mercury Active System (RMAS) has been shown to be more accurate than the industry standard, but has limitations including long time resolution and sampling biases. Increasing the sampling flow rate negatively affected RM concentrations, but did not impact the chemical composition of RM captured on membranes.
ATMOSPHERIC ENVIRONMENT
(2024)
Article
Environmental Sciences
Chin-Yu Hsu, Wei-Ting Hsu, Ching-Yi Mou, Pei-Yi Wong, Chih-Da Wu, Yu-Cheng Chen
Summary: This study estimated the daily exposure concentrations of PM2.5 for elderly individuals residing in different regions of Taiwan using land use regression with machine learning (LUR_ML) and microenvironmental exposure (ME) models. The accuracy of the models varied across regions, with the ME models exhibiting higher predictions and lower biases. The use of region-specific microenvironmental measurements in the ME model showed potential for accurate prediction of personal PM2.5 exposure.
ATMOSPHERIC ENVIRONMENT
(2024)
Article
Environmental Sciences
Xiaohan Si, Kerrie Mengersen, Chuchu Ye, Wenbiao Hu
Summary: This study found that there is an interactive effect between air pollutants and weather factors, which significantly affects influenza transmission. Future research should consider the interactive effects between pollutants and temperature or humidity to evaluate the environment-influenza association.
ATMOSPHERIC ENVIRONMENT
(2024)
Article
Environmental Sciences
Luxi Xu, Ruijun Xu, Yunshao Ye, Rui Wang, Jing Wei, Chunxiang Shi, Qiaoxuan Lin, Ziquan Lv, Suli Huang, Qi Tian, Yuewei Liu
Summary: This study aimed to evaluate the impact of ambient air pollution on hospital admissions for angina. The results showed that exposure to ambient particulate matter, sulfur dioxide, nitrogen dioxide, carbon monoxide, and ozone are associated with an increased risk of hospital admissions for angina. The association with nitrogen dioxide exposure was found to be the strongest.
ATMOSPHERIC ENVIRONMENT
(2024)
Article
Environmental Sciences
Xinyu Yu, Man Sing Wong, Majid Nazeer, Zhengqiang Li, Coco Yin Tung Kwok
Summary: This study proposes a novel method to address the challenge of missing values in satellite-derived AOD products and creates a comprehensive daily AOD dataset for the Guangdong-Hong Kong-Macao Greater Bay Area. By reconstructing missing values and developing a new model, the derived dataset outperforms existing products and agrees well with ground-based observations. Additionally, the dataset exhibits consistent temporal patterns and more spatial details.
ATMOSPHERIC ENVIRONMENT
(2024)
Article
Environmental Sciences
Yidan Zhang, Yifan Xu, Bo Peng, Wu Chen, Xiaoyu Cui, Tianle Zhang, Xi Chen, Yuan Yao, Mingjin Wang, Junyi Liu, Mei Zheng, Tong Zhu
Summary: This study developed a sensitive method to measure the metallic components of atmospheric fine particulate matter (PM2.5) and compared the results with different analysis methods. The concentrations of metallic components in personal PM2.5 samples were found to be significantly different from corresponding fixed-site samples. Personal sampling can reduce exposure misclassifications, and measuring metallic components is useful for exploring health risks and identifying sources of PM2.5.
ATMOSPHERIC ENVIRONMENT
(2024)
Review
Environmental Sciences
Jamie Leonard, Lea Ann El Rassi, Mona Abdul Samad, Samantha Prehn, Sanjay K. Mohanty
Summary: Increasing concentrations of microplastics in the Earth's atmosphere could have adverse effects on ecosystems and human health. The deposition rate of airborne microplastics is influenced by both land use and climate, and a global analysis suggests that climate may have a greater impact on the concentration and deposition rate of microplastics than land use.
ATMOSPHERIC ENVIRONMENT
(2024)
Article
Environmental Sciences
Tian Zhou, Xiaowen Zhou, Zining Yang, Carmen Cordoba-Jabonero, Yufei Wang, Zhongwei Huang, Pengbo Da, Qiju Luo, Zhijuan Zhang, Jinsen Shi, Jianrong Bi, Hocine Alikhodja
Summary: This study investigated the long-range transport and effects of North African and Middle Eastern dust in East Asia using lidar observations and model simulations. The results showed that the dust originated from multiple sources and had a long transport time. The vertical distribution of the dust was found to be crucial for assessing its impacts.
ATMOSPHERIC ENVIRONMENT
(2024)